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Lintel Jan 1 - 7 25 questions
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Monday 21 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 971 + 147

    Answer: 971 + 147 = 1118
  2. 2. Algebra

    Solve: 4x = 56

    Answer: x = 14
  3. 3. Geometry

    Adjacent = 29cm, hypotenuse = 46cm. Find the angle

    Answer: 50.9°
  4. 4. Ratio

    Find 50% of 213

    Answer: 106.5
  5. 5. Statistics

    A spinner has 4 red, 3 blue and 6 green sections. Probability of landing on red?

    Answer: 413

Tuesday 22 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 111. What are the numbers?

    Answer: 36, 37, and 38
  2. 2. Algebra

    Solve: 7x = 77

    Answer: x = 11
  3. 3. Geometry

    Opposite = 19cm, adjacent = 13cm. Calculate the angle

    Answer: 55.6°
  4. 4. Ratio

    Simplify: 8:12:16

    Answer: 2:3:4
  5. 5. Statistics

    A spinner has 5 red, 6 blue and 3 green sections. Probability of landing on red?

    Answer: 514

Wednesday 23 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 57 + ? = 147

    Answer: 90
  2. 2. Algebra

    Factorise fully: 30x² + 20x

    Answer: 5x(6x + 4)
  3. 3. Geometry

    Find c if a = 11cm and b = 18cm in a right triangle

    Answer: 21.cm
  4. 4. Ratio

    Simplify: 8:8:12

    Answer: 2:2:3
  5. 5. Statistics

    Calculate the mean of: 43, 7, 47, 30, 35, 12

    Answer: 29

Thursday 24 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 612 + 147

    Answer: 612 + 147 = 759
  2. 2. Algebra

    Solve: x7 = 4.7142857142857

    Answer: x = 33
  3. 3. Geometry

    Adjacent = 23cm, hypotenuse = 34cm. Find the angle

    Answer: 47.4°
  4. 4. Ratio

    Calculate 37.5% of 686

    Answer: 257.25
  5. 5. Statistics

    A spinner has 3 red, 5 blue and 5 green sections. Probability of landing on red?

    Answer: 313

Friday 25 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 111. What are the numbers?

    Answer: 36, 37, and 38
  2. 2. Algebra

    Factorise: 5x² + 5x

    Answer: 5x(x + 1)
  3. 3. Geometry

    Opposite = 15cm, adjacent = 17cm. Calculate the angle

    Answer: 41.4°
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 6, 45, 42, 13, 48, 6

    Answer: 26.7